Synthesis of nitroimidazole substituted 3,3,9,9-tetramethyl-4,8-diazaundecane-2,10-dione dioximes (propylene amine oximes, PnAOs): Ligands for technetium-99m complexes with potential for imaging hypoxic tissue
作者:Kondareddiar Ramalingam、Natarajan Raju、Palaniappa Nanjappan、David P. Nowotnik
DOI:10.1016/0040-4020(95)00042-7
日期:1995.3
synthesized as precursors to nitroimidazole-substituted 3,3,9,9-tetramethyl-4,8-diazaundecane-2,10-dione dioxime (21b, 21d, 21e and 26a-26c) (Propylene Amine Oxime, PnAO) ligands. 3-Chloro-3-methyl-1-(2- or 4-nitro-I H-imidazol-1-yl)-2-nitroso-butanes (18a-e) required for the syntheses of nitroimidazole substituted propylene amine oxime (PnAO) ligands were prepared from the corresponding dimethylallyl-nitroimidazoles
一系列2-取代的1,3-二氨基丙烷(1b-1f,1h)已被合成为硝基咪唑取代的3,3,9,9-四甲基-4,8-二氮杂癸烷-2,10-二酮二肟的前体(21b,21d,21e和26a-26c)(丙烯胺肟,PnAO)配体。硝基咪唑取代的丙烯胺肟(PnAO)合成所需的3-氯-3-甲基-1-(2-或4-硝基-I H-咪唑-1-基)-2-亚硝基丁烷(18a-e) )配体由相应的二甲基烯丙基-硝基咪唑(17a-17e)通过加入亚硝酰氯。合成了许多具有静电,疏水或亲水相互作用潜能的硝基咪唑衍生的PnAO配体,作为tech-99m配合物的前体,正在研究中作为低氧的潜在显像剂。用3-氯-3-甲基-1-(2-或4-硝基-1 H-咪唑-1-基)-2-亚硝基丁烷制备在碳原子上取代的PnAO衍生物。使用3-溴-3-甲基丁烷-2-一(24)制备了在中心碳原子上衍生化的三个PnAO 26a-26c。